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238 Buttonwood Dr, Key Biscayne FL 33149

House For Sale
$8,500,000

BTC: 132.42018451

ETH: 4,821.49137237

32 days
6 bds
6 ba
4,190 sqft

Overview

A unique architectural masterpiece in the heart of Key Biscayne, this brand-new contemporary residence by Praxis Architecture blends modern tropical luxury with exceptional craftsmanship and bespoke European finishes. Set on an oversized 9,000 SF lot, the residence offers 6 bedrooms, 6 full bathrooms, 1 half bath, and over 4,190 SF of curated living space designed around natural light, privacy, and seamless indoor-outdoor living. Imported Spanish porcelain and ceramic surfaces, Italian-engineered wood flooring, Portuguese interior doors, and refined finishes sourced from the United Kingdom create a warm and sophisticated architectural atmosphere throughout. Custom millwork — including the kitchen, bar, wardrobes, and integrated TV units — was exclusively crafted by a French maison specializing in ultra-luxury bespoke cabinetry. The residence highly designed kitchen is equipped with Wolf, Sub-Zero, and Miele appliances, smart-home automation, and integrated security. Outdoor spaces feature a spectacular 36-foot swimming pool, expansive terraces, summer kitchen, lush private garden patio, and multiple entertaining areas designed for effortless resort-style living. Located moments from tennis courts and the Key Biscayne Yacht Club, beaches, marinas, top-rated schools, and the best of island living, this residence represents one of Key Biscayne’s most thoughtfully designed brand new-construction homes - Expected to be finished in July 2026. Easy to Show!

Location

Details

Type:
Residential
Parking:
Covered
Year Built:
2026
Lot:
8916 Square Feet
Heating:
Central
Price/sqft:
$2,029
Cooling:
Central Air
HOA:
No Data

Valuation

Our model vs. what's actually selling nearby.
Estimate
$5,112,500
$4.1M – $9.4M
Confidence Low
List vs. estimate
$3.4M above estimate
List $8,500,000 · +66.3%
Our model says this listing is priced above recent comparable activity. Room to negotiate.
Price per sq ft
$2,028
+8.9% vs. city median $1,862
Based on
6 MLS comparables
+ 30 public-records sales within 0.5 mi
Median actual sale: $2.3M
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$12,000
2025
Pool
In Ground
View
Garden
Garage
2 car garage
Pets
Allowed
All facts and features
  • Flooring

    • Wood

    Heating

    • Central

    Cooling

    • Central Air

    Appliances

    • Trash Compactor

    • Dishwasher

    • Dryer

    • Microwave

    • Electric Range

    • Refrigerator

    • Washer

    Other interior features

    • First Floor Entry

    • Built-in Features

    • Closet Cabinetry

    • Entrance Foyer

    • Pantry

    • Walk-In Closet(s)

    • Den/Library/Office

    • Utility Room/Laundry

    Bedrooms and bathrooms

    • Bedrooms: 6

    • Bathrooms: 1

    • Full bathrooms: 6

  • Parking

    • Covered

    Property

    • Exterior Features: Built-In Grill / Fruit Trees / Open Balcony

    Lot

    • Lot: 8916 Square Feet

    Other Property Information

    • Parcel Number: 24-42-32-006-1970

    • Zoning: 0100

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Other financial information

    • Annual tax amount: $12,000

  • Source details

    • MLS ID: A12021891

    Other facts

    • Construction Materials: Concrete Block Construction

    • Laundry Features: Utility Room/Laundry

    • Lot Features: Less Than 1/4 Acre Lot

    • Patio And Porch Features: Open Balcony / Patio

    • Pool Features: In Ground / Heated

    • Direction Faces: East

    • Architectural Style: Attached / Two Story

    • Garage Spaces: 2

    • Garage: Yes

    • Living Area: 4190

    • Water Source: Municipal Water

    • Subdivision Name: TROPICAL ISLE HOMES SUB 4

Private inquiry
Talk to the advisor on this listing.
Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

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The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: Douglas Elliman